Many PC users who have updated Windows 7 and 8.1 to Windows 10 and now want to perform a clean installation of Windows 10, but do not know how to activate the OS after such a procedure.
As promised a few months ago, Microsoft allows users to perform a clean installation of Windows 10 after upgrading from Windows 7 and 8.1. To help users to securely download the correct Windows 10 Edition, Microsoft has also released Windows 10 Media Creation Tool, but did not provide windows 10 product key generator detailed information about activating Windows 10 after a clean installation.
Legal Windows 10 activation without product key
According to Microsoft, if you upgraded your current computer with Windows 7 or 8.1 to Windows 10 using the free updates and Windows 10 successfully passed the activation, you may not need Microsoft Windows 10 Professional License 64-bit to perform a clean installation of Windows 10 on the same PC.
That is, you don’t need to get the product key for the Windows 10 Installer Cleanup on this computer, if you have upgraded from Windows 7 or 8.1 to 10 and successfully activated before a clean installation of the same edition of Windows 10.
For example, if you upgraded your computer to Windows 7 Lenovo Ultimate Edition to Windows 10 Pro (end users automatically receive this publication within the free upgrade) and successfully activated the OPERATING SYSTEM, you can perform a clean installation of Windows Pro 10 on the same machine.
Clean install and activate Windows 10
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Here are the steps you want to go for a clean install of Windows 10:
Step 1: download the Windows 10 ISO from Microsoft using the aforementioned us tool. Make sure to download the correct edition.
Step 2: prepare a bootable USB drive with Windows 10 or bootable DVD, and boot from Windows 10 Professional key the media by making appropriate changes to the BIOS/UEFI.
Step 3: If you are installing Windows 10, you will see the following screen, where you will be asked to enter the product key for Windows 10. Because you don’t have it, go to the next step, skipping window (“Skip”).
Step 4: complete the installation. That’s all, your Windows 10 will be activated site automatically connect your computer to the Internet.
But, if you still get error activation, do not hesitate to communicate with Microsoft support or request a callback from their support.
Note that the above method is provided by Microsoft, and is not somehow bypass Windows 10 activation illegal method.